647588240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4903}}^1$

素因数の和:5056

約数の個数: 80

約数和(自身を含む): 1634562048

約数和(自身を除く): 986973808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 208, 254, 260, 508, 520, 635, 1016, 1040, 1270, 1651, 2032, 2540, 3302, 4903, 5080, 6604, 8255, 9806, 10160, 13208, 16510, 19612, 24515, 26416, 33020, 39224, 49030, 63739, 66040, 78448, 98060, 127478, 132080, 196120, 254956, 318695, 392240, 509912, 622681, 637390, 1019824, 1245362, 1274780, 2490724, 2549560, 3113405, 4981448, 5099120, 6226810, 8094853, 9962896, 12453620, 16189706, 24907240, 32379412, 40474265, 49814480, 64758824, 80948530, 129517648, 161897060, 323794120, 647588240]

約数ペア:

[(1, 647588240), (2, 323794120), (4, 161897060), (5, 129517648), (8, 80948530), (10, 64758824), (13, 49814480), (16, 40474265), (20, 32379412), (26, 24907240), (40, 16189706), (52, 12453620), (65, 9962896), (80, 8094853), (104, 6226810), (127, 5099120), (130, 4981448), (208, 3113405), (254, 2549560), (260, 2490724), (508, 1274780), (520, 1245362), (635, 1019824), (1016, 637390), (1040, 622681), (1270, 509912), (1651, 392240), (2032, 318695), (2540, 254956), (3302, 196120), (4903, 132080), (5080, 127478), (6604, 98060), (8255, 78448), (9806, 66040), (10160, 63739), (13208, 49030), (16510, 39224), (19612, 33020), (24515, 26416)]